let e2e concurrency configurable (fatedier#3881)

Author: fatedier

.gitignore

@@ -34,6 +34,8 @@ dist/
 .idea/
 .vscode/
 .autogen_ssh_key
+client.crt
+client.key
 
 # Cache
 *.swp

hack/run-e2e.sh

@@ -26,5 +26,9 @@ frpsPath=${ROOT}/bin/frps
 if [ "${FRPS_PATH}" ]; then
     frpsPath="${FRPS_PATH}"
 fi
+concurrency="12"
+if [ "${CONCURRENCY}" ]; then
+    concurrency="${CONCURRENCY}"
+fi
 
-ginkgo -nodes=8 --poll-progress-after=60s ${ROOT}/test/e2e -- -frpc-path=${frpcPath} -frps-path=${frpsPath} -log-level=${logLevel} -debug=${debug}
+ginkgo -nodes=${concurrency} --poll-progress-after=60s ${ROOT}/test/e2e -- -frpc-path=${frpcPath} -frps-path=${frpsPath} -log-level=${logLevel} -debug=${debug}